CN205308370U

CN205308370U - Sour purifier

Info

Publication number: CN205308370U
Application number: CN201520891502.8U
Authority: CN
Inventors: 郝东辉
Original assignee: 郝东辉
Current assignee: Emery Technology (Shenzhen) Co., Ltd
Priority date: 2015-11-10
Filing date: 2015-11-10
Publication date: 2016-06-15
Anticipated expiration: 2025-11-10

Abstract

The utility model provides a sour purifier, includes: treat the sour container of purification for hold and treat that the purification is sour, the heater for the sour container of purification is treated in the heating, in order to obtain thermal acid generator steam, the condenser disposes as and carries out the condensation to thermal acid generator steam, the purification acidizing fluid receiving flask of being connected with the condenser for the purification of collecting after the condensation is sour, the controller for control each part operation with the purification process that tingles, acidizing fluid temperature sensor for the temperature of the purification acidizing fluid body is treated in the measurement, controller set temperature threshold value wherein, this temperature and temperature threshold value are compared to the temperature of receiving acidizing fluid temperature sensor measurement to control heater correspondingly, wherein the condenser includes peltier semiconductor cooler, condenser main part and refrigerant temperature sensor. The utility model discloses sour purifier's condenser is equipped with peltier semiconductor cooler and refrigerant temperature sensor, and the cooling effect is stable, does not receive air and running water temperature, can accurate instruction cooling effect.

Description

Acid purifier

Technical field

The utility model relates generally to acid solution purifying, specifically relates to acid purifier apparatus.

Background technology

Ultrapure acid is often used in trace, the ultratrace analysis in laboratory, it is thus desirable to by the acid of ordinary purity under state is boiled in Asia slow evaporation out, and condensation, collection become the higher acid of purity.

Acid purifier generally has heating function, temperature controlling functions, liquid level monitoring function and condensation function, so as acid solution to be heated, temperature control, liquid level monitoring and carry out condensation and collection.

During obtainable acid purifier designs on the market at present, usually there is the shortcoming of following several respects;

1, temperature control:

(1) traditional solution is corroded by high-temperature strong acid easily for avoiding temperature sensor, its temperature sensor is arranged on container exterior, avoid contacting with strong acid, but what such installation mode was measured is the temperature of container outer wall, the true temperature of acid solution cannot be reflected, usual solution temperature to be differed 5-20 DEG C with the temperature of container outer wall, and the measuring error of temperature is very big.

(2) temperature regulator of traditional solution is many grades of bit-types, instead of continuously adjustabe type, can only probably set a temperature value, cannot accurately set.

2, Liquid level:

(1) for the liquid level of original acid solution, what traditional solution adopted is that the mode estimating liquid level tube is to judge liquid level. Once personnel forget timely range estimation, dry combustion method great risk even on fire will be had.

(2) for the liquid level of high-purity acid solution, existing solution is without any automatic detection and control measure. Once liquid level overfill, acid solution will overflow bottle, corrosion periphery object.

3, control condensation and computer heating control:

(1) existing solution adopts air cooling or the tap water type of cooling. These two kinds of modes all do not have temperature instruction cooling performance.

(2) these two kinds of modes easily affect by air themperature and tap water temperature condition, once temperature or water temperature rise, cooling performance is by influenced.

(3) water-cooled mode from the beginning, causes the risk that cannot cool in addition because cutting off the water.

(4) existing solution adopts infrared lamp or resistance wire to be used as thermal source, is naked light, the inflammable gas of surrounding of easily igniting;

(5) once temperature regulator lost efficacy, continuation is heated by infrared lamp or resistance wire, causes instrument to burn the great risk of even laboratory fire.

Practical novel content

For the present situation of prior art, make the utility model.

According to an aspect of the present utility model, it provides a kind of acid purifier, comprising: sour container to be purified, for holding acid to be purified, well heater, for heating sour container to be purified, to obtain hot acid steam, condenser, is configured to carry out condensation for hot acid steam, the purifying acid solution receiving flask being connected with condenser, for collecting the acid of condensed purifying, controller, runs to carry out acid purifying process for controlling each parts, acid liquor temperature sensor, for measuring the temperature of acid solution body to be purified, its middle controller set temperature threshold value, receive the temperature that acid liquor temperature sensor is measured, by this temperature compared with temperature threshold value, and correspondingly control well heater, wherein said condenser comprises Peltier peltier cooler, condenser bodies and refrigerant temperature sensors, " cold water " cooled in Peltier peltier cooler, the acid vapour being entered condenser bodies pair and condenser bodies housing contacts by the pressure of water pump is cooled, " hot water " is entered in Peltier peltier cooler by water pump and cools, go round and begin again, cycle operation, refrigerant temperature sensors measures the temperature of refrigeration agent in Peltier peltier cooler.

In one example, well heater is ptc heater.

In one example, acid purifier can also comprise: the heat conducting disk being arranged on ptc heater upper surface.

In one example, heat conducting disk is pure aluminium matter, and area is greater than ptc heater hot face, and combines closely in the bottom with sour container to be purified, and well heater and heat conducting disk have passed through the spraying of PTFE surface.

In one example, for thickness is less than the barrier film of predetermined threshold bottom described condenser bodies, barrier film contacts with hot acid steam, is cooled by hot acid steam, and the acid of condensed purifying enters purifying acid solution receiving flask by drainage tube.

In one example, the middle part of condenser bodies is divided into two portions by a baffle plate, to guide current direction, make internal temperature evenly.

In one example, refrigerant temperature sensors adopts capillary type thermopair; On pipeline between peltier cooler and condenser bodies, capillary type thermopair injects pipeline, and insert port has been carried out encapsulation process.

In one example, condenser bodies top is by PVDF material sealing of lid, and therebetween has silica gel sealing ring,

In one example, acid purifier is placed in stink cupboard, but described peltier cooler and controller is placed on outside stink cupboard.

In one example, the material of condenser bodies is PTFE material.

In one example, acid purifier also comprises base, and sour container to be purified and base adopt nested type to connect design, form a closed space between the two, and whole ptc heater is arranged in the space that this is closed.

In one example, acid purifier can also comprise: non-contact type ultrasonic liquid level sensor, it is arranged on the outside surface of container, and not with container surfaces contact, for the liquid level of acid to be purified automatically measured in sour container to be purified, and the signal of the instruction liquid level of measurement is sent to controller, controller receives the signal of this instruction liquid level, when the signal of this instruction liquid level is lower than predetermined threshold, transmit control signal, stop acid purifying process to control.

In one example, acid purifier can also comprise: pressure transmitter, for automatically responding to the weight of purifying acid solution receiving flask, and sends the signal of instruction weight to controller;Controller receives the signal of this instruction weight, when the signal of this instruction weight exceedes predetermined threshold, transmits control signal, and stops acid purifying process to control.

In one example, purifying acid solution receiving flask is positioned on pallet, and pallet adopts flange design, prevents acid solution from dripping to pressure sensor inside; And described pressure sensor design has leakage relief outlet, thus when sensor internal has acid solution to enter, it is possible to discharge this leakage.

In one example, pressure transmitter has carried out the spraying of PTFE surface.

In one example, controller comprises computer and micro-chip, and the transfer between all the sensors and computer is undertaken by communication.

Sour purifier according to the utility model embodiment, its condenser is equipped with Peltier peltier cooler and refrigerant temperature sensors, cooling performance is stablized, do not affect by air and tap water temperature, can accurately indicate cooling performance, it provides a kind of safety, stable, the type of cooling accurately.

Accompanying drawing explanation

Below in conjunction with accompanying drawing in the detailed description of the utility model embodiment, these and/or other side of the present utility model and advantage will become clearly and be easier to understand, wherein:

Fig. 1 shows the schematic perspective view of the sour purifier according to the utility model embodiment.

Fig. 2 shows the structural representation of the sour purifier according to the utility model embodiment.

Fig. 3 (a) and (b) respectively illustrate three-dimensional view and the sectional view of the acid solution position to be purified of the integrated form according to the utility model embodiment function unit 300.

Fig. 4 (a) and (b) respectively illustrate stereographic map and the sectional view of the thermocouple type temp sensor device 400 according to the utility model embodiment.

Fig. 5 shows the schematic perspective view of the thermocouple type temperature sensor 500 according to the utility model embodiment.

Fig. 6 (a) and (b) show the structure example of the condenser bodies 600 according to the utility model embodiment.

Fig. 7 (a) and (b) show structural representation and the sectional view of the interim collection device 700 of the pure acid according to the utility model embodiment.

Fig. 8 (a) and (b) show stereographic map and the front view of the structure of the well heater 800 according to the utility model embodiment.

Fig. 9 (a) and (b) show stereographic map and the sectional view of the sour purifier being configured with ultrasonic liquid level sensor 900 according to the utility model embodiment.

Figure 10 (a) shows the schematic perspective view of relative position relation between the pure acid solution receiving flask 4 according to the utility model embodiment and pressure transmitter and relevant part 1000, and Figure 10 (b) shows the sectional view according to the utility model embodiment pressure transmitter and relevant part 1000.

Embodiment

In order to make those skilled in the art understand the utility model better, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

First illustratively, herein, term " original acid ", " acid to be purified ", " acid to be purified " represent same implication, refer to as the acid solution into purifying object input acid purifier, and these terms are used interchangeably. Term " purifying acid " and " pure acid " represent same implication, are used interchangeably, and refer to the acid solution obtained after acid purifier purification process.

The integrated form acid solution position function unit E to be purified that exemplary acids purifier shown in Fig. 1 comprises the relevant part A of original acid (acid namely to be purified) (comprise sour container to be purified, well heater and condenser, after will illustrate in detail), purifying acid is collected part B, base portion C and is connected with sour container to be purified.The relevant part A of original acid (acid namely to be purified) comprises sour container to be purified, well heater and condenser, after will illustrate in detail.

Acid purifier comprises sour container 1 to be purified, well heater 2, condenser 3, purifying acid solution receiving flask 4, integrated form acid solution position to be purified function unit (not illustrating in Fig. 2, the part that in Fig. 1, label E indicates), controller (not shown).

Sour container 1 to be purified is for holding acid to be purified (being sometimes also called original acid herein, both are used interchangeably). Well heater 2 heats sour container to be purified, to obtain hot acid steam. The hot acid steam that condenser 3 obtains for heating carries out condensation. Purifying acid solution receiving flask 4 is connected with condenser, for collecting the acid of condensed purifying. For controlling, each parts run to carry out acid purifying process controller.

In one example, controller comprises upper computer and lower computer two portions, upper computer can be general-purpose computer such as desktop computer, notebook computer, mobile terminal etc., be wherein provided be suitable for perform control software; Lower computer is such as micro-chip or Special Programmable Logic Controller etc.; wherein each sensor in acid purifier can send signal to lower computer; coherent signal is sent to upper computer with wired or wireless mode after processing by lower computer; upper computer carries out corresponding calculating, instruction signal is sent to lower computer by process, judgement; lower computer is issued an order to each parts again, such as shutdown, startup, warning, time setting, threshold value setting etc. But this kind of mode is only example, it is possible to carry out as required adjusting or changing.

For ease of describing, hereinafter sometimes claim upper computer to be " computer ", claim lower computer to be " micro-chip ".

In the illustrated example shown in fig. 2, inner at sour container 1 to be purified, it is placed with temperature sensor 5, this temperature sensor 5 is placed on the inside of acid to be purified, contacts with acid solution, for measuring the temperature of acid solution body to be purified, controller set temperature threshold value, receive the temperature that acid liquor temperature sensor is measured, by the temperature of this measurement compared with temperature threshold value, and correspondingly control well heater. Detail is carried out below by the implementation example of built-in temperature sensor.

Summary introduces the overall workflow of the sour purifier of the utility model embodiment below.

A) add original acid solution from addition funnel, and observe liquid level change, to suitable liquid level.

B) opening the software in upper computer, setting Heating temperature (not higher than boiling point) and time, after clicking " beginning " key, well heater starts heating.

C) temperature sensor constantly gathers the temperature signal of acid solution, and sends computer to, and software is according to set(ting)value and actual value, and whether automatic decision continues heating or stop, thus keeps acid liquor temperature to be stabilized in set(ting)value.

D) original acid solution is lower than, at the temperature of boiling point, slow evaporation, acid vapour is condenser condenses, and then is that pure acid collecting frame is collected. These acid solutions collected can enter receiving flask by drainage tube.

E) when arriving the working time of setting, program stops automatically, whole end of processing.

F) in program operation process, original acid solution level controller constantly gathers the liquid level change of original acid solution, and sends computer to, when reaching the Schwellenwert set in advance, can automatically terminate program.

G) in program operation process, pure acid solution level controller constantly gathers the change of receiving flask weight, and sends computer to, when reaching the maximum set in advance, can automatically terminate program.

Follow-up with reference to accompanying drawing introduction according to the structure of each parts of the utility model embodiment and principle of work.

One, embodiment 1: integrated form acid solution position to be purified function unit

According to an embodiment of the present utility model, acid purifier is configured with integrated form acid solution position to be purified function unit.

Such as, Fig. 3 (a) and (b) respectively illustrate three-dimensional view and the sectional view of the acid solution position to be purified of the integrated form according to the utility model embodiment function unit 300 (can be used as the parts E shown in Fig. 1). Integrated form acid solution position to be purified function unit 300 is configured to addition funnel 310, liquid level tube 320 and removal waste fluid valve 330 integration, it is inner that acid to be purified enters sour container to be purified by addition funnel 310, the liquid level of liquid level tube 320 reflects the liquid level of sour container to be purified, can effluent discharge when removal waste fluid valve 330 is opened.

Lid 340 covers on addition funnel 310, and fixed screw holes 350 and 360 is for being fixed on sour container to be purified 1 as shown in Figure 2 by acid solution position to be purified for integrated form function unit 300 by screw.

370 and 380 indicate upper interface section and lower interface part respectively, UNICOM inner with sour container to be purified. 390 instruction removal waste fluid mouths, when opening a removal waste fluid valve 330, the solution in sour container 1 to be purified is discharged from removal waste fluid mouth 390 via lower interface part 380.

The integrated form of the present embodiment acid solution position to be purified function unit 300 can concentrate realization to add liquid, discharge opeing and level monitoring function, specifically:

Adding liquid: open lid 340, pour original acid solution into addition funnel 310, liquid can enter acid purifier body interior by two paths up and down of upper interface section 370 and lower interface part 380 UNICOM.

Discharge opeing: rotary rowed waist valve 90 °, waste liquid will be discharged from removal waste fluid mouth 390.

Liquid level: by observing liquid level tube 320, it is possible to estimate current level condition.

Liquid level tube, addition funnel, removal waste fluid valve are integrated by the integrated form of the present embodiment acid solution position to be purified function unit 300, both can observe liquid level change, can add liquid as funnel again, it is also possible to removal waste fluid; Traditional funnel, liquid level tube and the removal waste fluid valve scheme disconnected from each other that avoids adds the trouble that funnel before and after acid solution needs installing/dismounting, thus avoids the pollution that funnel is deposited in process.

Two, embodiment 2: built-in temperature sensor device

As previously mentioned, in traditional sour purifier, for avoiding temperature sensor to be corroded easily by high-temperature strong acid, temperature sensor is installed in container exterior, avoid contacting with strong acid, but such installation mode measures is the temperature of container outer wall, cannot reflect the true temperature of acid solution, usual solution temperature to be differed 5-20 DEG C with the temperature of container outer wall, and the measuring error of temperature is very big; And in prior art, typical temperature controller is many grades of bit-types, instead of continuously adjustabe type, can only probably set a temperature value, temperature setting accurately cannot be carried out.

According to embodiment of the present utility model, it provides a kind of built-in temperature sensor device, temperature sensor is directly placed in acid solution. Controller set temperature threshold value, receives the temperature that acid liquor temperature sensor is measured, by this temperature compared with temperature threshold value, and correspondingly controls well heater.

In one example, thermocouple type temperature sensor and matching component is adopted. The temp sensor device of this embodiment needs to solve two problems: 1, thermocouple wire directly can not contact with acid solution with thermocouple head; 2, the medium temperature that thermocouple head contacts to be equaled or substantially to equal the temperature of acid solution.

In one example, adopt capillary thermocouple conduction line (such as, external diameter is about 0.8mm), this thermopair is worn in PTFE (tetrafluoroethylene) kapillary of internal diameter such as about 1mm, then PTFE capillary is through hole in supporting tube, and after winding with one circuit on tube wrapping device, enter again supporting tube, then two PTFE capillary are extended outside bucket by the connection hole on acid purifying wall again.

In one example, article two, thermocouple wire can be placed in polytetrafluoroethylene PTFE kapillary, PTFE capillary is placed in supporting tube, and supporting tube is placed in sour container to be purified, and PTFE capillary is extended to outside sour container to be purified by the connection hole on the wall of sour container to be purified.

In one example, the lower end of described supporting tube is connected with tube wrapping device, PTFE capillary in described supporting tube is through hole in supporting tube out, and hole through supporting tube enters supporting tube again after winding with one circuit on tube wrapping device, then upwards extend along supporting tube, last from the hole of supporting tube and extend to outside sour container to be purified by the connection hole the wall of sour container to be purified, wherein thermocouple head part is in one week that described PTFE capillary is wound, and thermocouple head part contacts with PTFE capillary.

In one example, described two thermocouple wires subtend can make contact to and seem a wire, and subtend contact part becomes thermocouple head.

Label 441 indicates the thermocouple leads line part such as entering supporting tube 410, and its outer cover has PTFE (tetrafluoroethylene) kapillary. PTFE material can tolerate 250 degree of high temperature and strong acid and strong base corrosion, is equivalent to put on layer protecting film to thermopair, serves the effect of protection against corrosion. Here PTFE material can replace by material that is high temperature resistant by other and strong acid and strong base corrosion.

Then thermocouple leads line extends downwards along supporting tube 410, from stretching out close to the outlet (not shown) around tube wall 420 on supporting tube 410, then after winding with one circuit on tube wrapping device 420, the entrance (not shown) on supporting tube 410 enters supporting tube 410 again, then upwards extend along supporting tube 410, finally stretching out from supporting tube 420 upper outlet (not shown), the part 442 then stretched out from supporting tube 420 is stretched out outside acid purifier by the connection hole acid purifying wall. Thermocouple induction 450 is positioned at described PTFE capillary and is wrapped in a week around tube wall 420, such as, be in the underface place around tube wall 420 as shown in the figure, to contact with acid solution. By the revolution mode of tube wrapping device circle, it is possible to the problem that the PTFE capillary avoiding direct doubling to cause easily breaks.

Temperature in order to make thermocouple induction head sense survey is the temperature of acid solution, carry out the diameter design of thermocouple wire and PTFE capillary, thermocouple wire and PTFE capillary are in close contact, such as, diameter difference between PTFE capillary and thermocouple wire is less than 2mm, preferably it is less than 1mm, it is more preferable to ground is less than 0.5mm.

Fig. 5 shows the schematic perspective view of the thermocouple type temperature sensor 500 according to another embodiment of the utility model.

As shown in Figure 5, PTFE integument 520 in thermocouple wire (two) 510 external parcel. The medium temperature that thermocouple induction head and thermocouple probe 530 directly contact should equal or substantially equal the temperature of acid solution, for this reason, thermocouple induction head should be made to be in close contact PTFE integument, PTFE integument directly contacts acid solution, it is possible to think that the temperature of PTFE integument equals the temperature of acid solution.For ensureing being in close contact of this thermocouple induction head and PTFE integument, in the example depicted in fig. 5, hot-press method is adopted to make probe and PTFE wall perfect adaptation in the position that namely thermocouple induction head pops one's head in. Further, enter and cause interference for stopping cool ambient air, wire devises multiple seal point 540, also adopt hot-press method sealing.

Thermocouple leads line is such as capillary thermocouple conduction line, and such as external diameter is about 0.8mm, the PTFE integument of thermopair surface parcel wall thickness about such as 0.5mm. PTFE material can tolerate 250 degree of high temperature and strong acid and strong base corrosion, is equivalent to put on layer protecting film to thermopair, serves the effect of protection against corrosion. And probe positions is fully combined with thin-walled by hot-press method, survey temperature more accurately, quicker.

Three, embodiment 3: condenser, peltier cooler, the interim collection device of pure acid and well heater

As previously mentioned, traditional sour purifier adopts air cooling or the tap water type of cooling. These two kinds of modes all do not have temperature instruction cooling performance; And these two kinds of modes easily affect by air themperature and tap water temperature condition, once temperature or water temperature rise, cooling performance is by influenced; Water-cooled mode from the beginning in addition, causes the risk that cannot cool in addition because cutting off the water.

Condenser according to the utility model embodiment comprises Peltier peltier cooler, condenser bodies, refrigerant temperature sensors, wherein cooled in Peltier peltier cooler " cold water ", the acid vapour being entered condenser bodies pair and condenser bodies housing contacts by the pressure of water pump is cooled, " hot water " is entered in Peltier peltier cooler by water pump and cools, go round and begin again, cycle operation, refrigerant temperature sensors measures the temperature of refrigeration agent in Peltier peltier cooler.

Condenser bodies 600 comprises cover part 610, intermediate 620, barrier film 630, baffle plate 640.

Seal with sealing-ring 650 between cover part 610 and intermediate 620. Cover part 610 is such as PVDF material, and sealing-ring 650 is such as silica gel sealing ring. Label 660 indicates the screw hole being used for fixed cover, and label 670 indicates cooling water inlet.

The bottom of described condenser bodies 600 is the barrier film 630 that thickness is less than predetermined threshold, barrier film contacts with hot acid steam (heating acid solution to be purified by the such as well heater 2 shown in Fig. 1 to obtain), being cooled by hot acid steam, the acid of condensed purifying enters purifying acid solution receiving flask (such as the label 3 shown in Fig. 1 indicates) by drainage tube.

Be divided into two portions by baffle plate 640 in the middle part of condenser bodies, to guide current direction, make internal temperature evenly.

On pipeline between Peltier peltier cooler (not illustrating in Fig. 6 (a) and (b)) and condenser bodies 600, refrigerant temperature sensors (does not illustrate in Fig. 6 (a) and (b)) that such as capillary type thermopair is inserted into pipeline, and insert port has been carried out encapsulation process, ensure that not having refrigeration agent oozes out. Such design can ensure that what thermopair detected is the actual temperature of refrigeration agent, instead of pipeline outside wall temperature. Capillary type thermopair diameter such as about 1.0mm, is convenient to bend.

Work under highly corrosive environments for a long time for acid purifier, Peltier peltier cooler is easy to by the problem of acid gas corrosion, in one example, peltier cooler is placed on the outer (attention of stink cupboard, the main body of acid purifier is placed in stink cupboard usually), thus avoid and the contact of acid gas.In one example, condenser bodies (also can be referred to as interchanger) and adopt PTFE material, the refrigeration agent cooled by semi-conductor refrigerator and acid vapour carry out thermal exchange in bottom diaphragm 630 both sides of condenser bodies, refrigeration agent after exchange is pumped into water cooler and again cools, and carries out this process again and again.

Then the condensed pure acid solution body of the device that is condensed generally is drained in receiving flask by of short duration collection.

Acid vapour is cooled after rising to the barrier film of condenser bodies by the rising mouth 710 in the interim collection device of pure acid (or being referred to as receiving flask) 700, and condensed pure acid solution body or directly drips catch tray 720 from barrier film along the bucket wall backflow of collector. The upper surface of catch tray 720 is designed in skewed so that pure acid solution body collects in draining hole 730 under gravity, enters receiving flask by drainage tube.

The well heater for heating acid to be purified according to the utility model embodiment is described below.

As previously mentioned, the sour purifier of prior art adopts infrared lamp or resistance wire to be used as thermal source, is naked light, the inflammable gas of surrounding of easily igniting; And once temperature regulator lost efficacy, continuation is heated by infrared lamp or resistance wire, causes instrument to burn the great risk of even laboratory fire.

Sour purifier according to the utility model embodiment adopts ptc heater, due to PTC (PositiveTemperatureCoefficient), i.e. positive temperature coefficient effect, electric current raises by causing temperature after element, the i.e. rise in temperature of heating element, once exceed certain temperature (Curie temperature), its resistance value along with the rising of temperature be almost in the increasing of phase step type, thus limit electric current and increase, so the decline of electric current causes component temperature to reduce. And the reduction of temperature can make the reduction of resistance value, thus circuit electric current increases, and component temperature raises. Go round and begin again, make temperature remain on specified range. Ptc heater adstante febre is not rubescent, and the flames of anger is nonflammable. Even if temperature regulator lost efficacy, ptc heater also can not continue to be heated beyond Curie temperature, can not produce danger of combustion.

According to the utility model preferred embodiment, working for a long time for acid purifier under highly corrosive environments, ptc heater is easy to by the problem of acid gas corrosion, well heater has been carried out special design, comprise following any one of, but be not limited to these, it is possible to carry out other design:

(1) ptc heater self has done the spraying of PTFE surface, can effectively resist acid solution acid gas corrosion;

(2) the acid main body of purifier and base adopt nested type to connect design, a closed space is formed between the two, whole ptc heater is arranged on this space closed so that whole ptc heater is wrapped up by main body and base, has stopped and the contact of external world's acid gas;

(3) in addition, consider the homogeneity of heating, specialized designs area much larger than ptc heater hot face, thinner thickness is such as thick is the heat conducting disk of 3mm, this heat conducting disk fits tightly with the bottom of acid purifying main body, carry out heat conduction, it is possible to effectively improve the problem of the heat transfer inequality caused because ptc heater can not fit the whole bottom of acid purifier main body completely. Heat conducting disk can be the extraordinary pure aluminium matter of heat conductivility, and can also carry out the spraying of PTFE surface.

As shown in Fig. 8 (a) and (b), well heater 800 comprises ptc heater main body 810 and heat conducting disk 820. The area of heat conducting disk 820 is much larger than the area of ptc heater main body 810, it may be preferred that the former is equal to, or greater than 1.5 times of the latter, and the area of heat conducting disk 820 can design according to the bottom area of acid purifier main body, and such as the two area is suitable; The end face of heat conducting disk 820 bottom surface and ptc heater main body 810 fits tightly in addition, carries out heat conduction, it is possible to effectively improve the problem of the heat transfer inequality caused because ptc heater can not fit the whole bottom of acid purifier main body completely.

Four, embodiment 4: acid contactless liquid level sensor to be purified

As previously mentioned, in the sour purifier of prior art, there is no liquid level sensor, consider that acid purifier works at high temperature (higher than in 100 DEG C of situations) for a long time, install if liquid level sensor is close to container outer wall, can be easy to cause the liquid level sensor being close to container outer wall overheated and lost efficacy or damaged. According to an embodiment of the present utility model, the original acid solution level sensor of acid purifier adopts non-contact type ultrasonic liquid level sensor, automatic induction level changes, once liquid level is lower than settings, namely voltage signal is sent to software, software and automatic shutdown, avoid personnel's carelessness and fire disaster hidden danger; And the special liquid level sensor according to the utility model embodiment, its surface measurements does not directly contact with container outer wall, keep space certain, such as 2mm, the problem avoiding the quick accumulation of heat and easily lost efficacy or damaged, turn avoid surface measurements and solution apart from too far away and lose due sensitivity problem.

As shown in Fig. 9 (b), ultrasonic liquid level sensor 900 according to the outside surface at sour container 1 to be purified, and and the wall face of sour container to be purified 1 between exist distance d, d be greater than zero. Label 7 indicates the shell of acid purifier.

Sour purifier according to the utility model embodiment adopts the noncontact formula infrared liquid level sensor of specially designed ultrasonic wave, it is arranged on the outside surface of container, and not with container surfaces contact, both avoid sensor and directly contacted the problem being corroded with acid solution, turn avoid the problem of the circuit damage that sensor directly contacts and cause with the container of high temperature.

Below in conjunction with accompanying drawing, the pressure transmitter surveying pure acid solution position for indirectly feeling according to the utility model embodiment is described.

According to the utility model embodiment, pressure transmitter adopts weight resistance strain type pressure sensor, compression weight sensor constantly gathers the change of the pressure that receiving flask weight causes, and send computer to, when reaching the maximum set in advance, acid purifying procedure be can automatically terminate, personnel's carelessness and great chemical corrosion hidden danger avoided.

In one example, at receiving flask 4 times placement trays 1020, it is preferable that receiving flask pallet 1020 adopts flange to design, and can hold the acid solution of the water clock of about 20mL, avoid these acid solutions disorderly stream, prevent acid solution from dripping to sensor internal.In one example, sensor 1010 devises leakage relief outlet 1030 at such as its support place, thus just in case sensor internal has acid solution to enter, can discharge in time.

Described pressure transmitter 1010 and/or other parts, such as pallet, sensor fixed screw holes 1040, data string holes 1050 can carry out the spraying of PTFE surface or itself namely adopt PTFE material to make, it is possible to anti-acid liquid corrosion.

According to an embodiment of the present utility model, the instruction that the data of all the sensors collection and computer software send all is transmitted by bluetooth or wifi mode, controller (upper computer and lower computer) can be placed on outside stink cupboard, save stink cupboard space, it may also be useful to personnel are also remote controlled.

Being described above each embodiment of the present utility model, above-mentioned explanation is exemplary, and non-exclusive, and also it is not limited to disclosed each embodiment. When not deviateing the scope and spirit of illustrated each embodiment, many modifications and changes are all apparent for those skilled in the art. Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.

Claims

1. a sour purifier, comprising:

Sour container to be purified, for holding acid to be purified;

Well heater, for heating sour container to be purified, to obtain hot acid steam;

Condenser, is configured to carry out condensation for hot acid steam;

The purifying acid solution receiving flask being connected with condenser, for collecting the acid of condensed purifying;

Controller, runs to carry out acid purifying process for controlling each parts,

Acid liquor temperature sensor, for measuring the temperature of acid solution body to be purified;

Its middle controller set temperature threshold value, receives the temperature that acid liquor temperature sensor is measured, by this temperature compared with temperature threshold value, and correspondingly controls well heater,

Wherein said condenser comprises Peltier peltier cooler, condenser bodies and refrigerant temperature sensors,

" cold water " cooled in Peltier peltier cooler, the acid vapour being entered condenser bodies pair and condenser bodies housing contacts by the pressure of water pump is cooled, and " hot water " is entered in Peltier peltier cooler by water pump and cools, and goes round and begins again, cycle operation

Refrigerant temperature sensors measures the temperature of refrigeration agent in Peltier peltier cooler.

2. acid purifier according to claim 1, is characterized in that described well heater is ptc heater.

3. acid purifier according to claim 2, is characterized in that also comprising:

The heat conducting disk being arranged on ptc heater upper surface.

4. acid purifier according to claim 3, is characterized in that

Heat conducting disk is pure aluminium matter, and area is greater than ptc heater hot face, and combines closely in the bottom with sour container to be purified, and

Well heater and heat conducting disk have passed through the spraying of PTFE surface.

5. acid purifier according to claim 1, is characterized in that

For thickness is less than the barrier film of predetermined threshold bottom described condenser bodies, barrier film contacts with hot acid steam, is cooled by hot acid steam, and the acid of condensed purifying enters purifying acid solution receiving flask by drainage tube.

6. acid purifier according to claim 1, is characterized in that

The middle part of condenser bodies is divided into two portions by a baffle plate, to guide current direction, make internal temperature evenly.

7. acid purifier according to claim 1, is characterized in that described refrigerant temperature sensors adopts capillary type thermopair;

On pipeline between peltier cooler and condenser bodies, capillary type thermopair injects pipeline, and insert port has been carried out encapsulation process.

8. acid purifier according to claim 1, is characterized in that condenser bodies top is by PVDF material sealing of lid, and therebetween has silica gel sealing ring.

9. acid purifier according to claim 1, is characterized in that acid purifier is placed in stink cupboard, but described peltier cooler and controller is placed on outside stink cupboard.

10. acid purifier according to claim 1, is characterized in that the material of condenser bodies is PTFE material.